- Don't use "friends" classes, like Seq24PerfInput and PerfRoll (in my opinion it's not a good practice). Also, don't write many classes in one file.

- Write a lot of unit tests !

- Maybe benchmarking ?

There are some of my ideas, I'll surely give some others in the future. It's not necessary to do it in one time, but we can begin to do it gradually. I don't know if all are good and workable, but it could be interesting to improve the code before the 1.0 release !